31781

Appears in sequences

• a(n) = 10000*log(n) rounded to nearest integer.at n=23A004244
• a(n) = ceiling(10000*log(n)).at n=23A004245
• a(0)=0, a(1)=1, a(2)=2; for n > 2, a(n) = 3*a(n-1) - a(n-2) - 2*a(n-3).at n=15A027934
• Matrix square of triangle A063967.at n=37A091700
• a(n) = 5*3^n - 4*2^n.at n=8A102485
• Triangle read by rows, a generalization of the Eulerian numbers based on Nielsen's generalized polylogarithm (case m = 2).at n=34A142249
• Expansion of x/((1-x-x^3)*(1-x)^5).at n=15A144899
• Number of n X n binary arrays symmetric about both diagonal and antidiagonal with all ones connected only in a 0110-1111-0100 pattern in any orientation.at n=15A146590
• [s(k)-s(j)]/10, where the pairs (k,j) are given by A205877 and A205878, and s(k) denotes the (k+1)-st Fibonacci number.at n=30A205880
• Positions of records in A096303.at n=19A229743
• Semiprimes generated by the polynomial 2 * n^2 + 29.at n=35A241554
• Number of non-isomorphic n X n nonnegative integer symmetric matrices with all row and column sums equal to n up to permutations of rows and columns.at n=6A333738
• Composite numbers of the form 2*k^2 + 29.at n=35A352949